/usr/share/perl5/Type/Tiny/Role.pm is in libtype-tiny-perl 1.000005-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | package Type::Tiny::Role;
use 5.006001;
use strict;
use warnings;
BEGIN {
$Type::Tiny::Role::AUTHORITY = 'cpan:TOBYINK';
$Type::Tiny::Role::VERSION = '1.000005';
}
use Scalar::Util qw< blessed weaken >;
sub _croak ($;@) { require Error::TypeTiny; goto \&Error::TypeTiny::croak }
require Type::Tiny;
our @ISA = 'Type::Tiny';
my %cache;
sub new {
my $proto = shift;
my %opts = (@_==1) ? %{$_[0]} : @_;
_croak "Role type constraints cannot have a parent constraint passed to the constructor" if exists $opts{parent};
_croak "Role type constraints cannot have a constraint coderef passed to the constructor" if exists $opts{constraint};
_croak "Role type constraints cannot have a inlining coderef passed to the constructor" if exists $opts{inlined};
_croak "Need to supply role name" unless exists $opts{role};
return $proto->SUPER::new(%opts);
}
sub role { $_[0]{role} }
sub inlined { $_[0]{inlined} ||= $_[0]->_build_inlined }
sub has_inlined { !!1 }
sub _build_constraint
{
my $self = shift;
my $role = $self->role;
return sub { blessed($_) and do { my $method = $_->can('DOES')||$_->can('isa'); $_->$method($role) } };
}
sub _build_inlined
{
my $self = shift;
my $role = $self->role;
sub {
my $var = $_[1];
qq{Scalar::Util::blessed($var) and do { my \$method = $var->can('DOES')||$var->can('isa'); $var->\$method(q[$role]) }};
};
}
sub _build_default_message
{
my $self = shift;
my $c = $self->role;
return sub { sprintf '%s did not pass type constraint (not DOES %s)', Type::Tiny::_dd($_[0]), $c } if $self->is_anon;
my $name = "$self";
return sub { sprintf '%s did not pass type constraint "%s" (not DOES %s)', Type::Tiny::_dd($_[0]), $name, $c };
}
sub has_parent
{
!!1;
}
sub parent
{
require Types::Standard;
Types::Standard::Object();
}
sub validate_explain
{
my $self = shift;
my ($value, $varname) = @_;
$varname = '$_' unless defined $varname;
return undef if $self->check($value);
return ["Not a blessed reference"] unless blessed($value);
return ["Reference provides no DOES method to check roles"] unless $value->can('DOES');
my $display_var = $varname eq q{$_} ? '' : sprintf(' (in %s)', $varname);
return [
sprintf('"%s" requires that the reference does %s', $self, $self->role),
sprintf("The reference%s doesn't %s", $display_var, $self->role),
];
}
1;
__END__
=pod
=encoding utf-8
=head1 NAME
Type::Tiny::Role - type constraints based on the "DOES" method
=head1 STATUS
This module is covered by the
L<Type-Tiny stability policy|Type::Tiny::Manual::Policies/"STABILITY">.
=head1 DESCRIPTION
Type constraints of the general form C<< { $_->DOES("Some::Role") } >>.
This package inherits from L<Type::Tiny>; see that for most documentation.
Major differences are listed below:
=head2 Attributes
=over
=item C<role>
The role for the constraint.
Note that this package doesn't subscribe to any particular flavour of roles
(L<Moose::Role>, L<Mouse::Role>, L<Moo::Role>, L<Role::Tiny>, etc). It simply
trusts the object's C<DOES> method (see L<UNIVERSAL>).
=item C<constraint>
Unlike Type::Tiny, you I<cannot> pass a constraint coderef to the constructor.
Instead rely on the default.
=item C<inlined>
Unlike Type::Tiny, you I<cannot> pass an inlining coderef to the constructor.
Instead rely on the default.
=item C<parent>
Parent is always Types::Standard::Object, and cannot be passed to the
constructor.
=back
=head1 BUGS
Please report any bugs to
L<http://rt.cpan.org/Dist/Display.html?Queue=Type-Tiny>.
=head1 SEE ALSO
L<Type::Tiny::Manual>.
L<Type::Tiny>.
L<Moose::Meta::TypeConstraint::Role>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=head1 DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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